Side bearing



UNITED srarss rerum' orrice.'

JOHN r. ocoNNoR, or cnIcAeo, ILLiNoIs, AssreNoa To WILLIAM II. MINNR, or CRAZY, NEW YORK.

SIDE BEARING.

Specification of Letters Patent.

Patented N ov. 2, 1920.

Application led September 5, 1919.. Serial No. 321,753.

To all flo/tom t may concern.'

Be it known that lf, JOHN F. CCoNNoR, a citizen of the United States, residinoat Chicago, in the coimty of Cook and ztats of illinois, have invented a certain new and i'iseful improvement in Side Bearings, of which the followingl is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates to improvements in side bearings.

(ine object of the invention is to provide a. simple and efficient, relatively inexpensive, side bearing for railway cars and which is particularly adapted for attachment to the under side of a body bolster.

ln the drawing` forming a part of this specification, Figure 1 is a vertical sectional view of portions of a body and a truck `holster of a car showing my improvements in -i-.onnection therewith. And Fig. 2 is a vertical sectional. view taken substantially on the line 2-2 of Fig. 1.

.ln said drawing, 1() denotes the upper section of a truck bolster of a railway car and 1l the lower section of an opposed body bolster. As shown, my improved bearing is attached to the under side of a liody bolster and the anti-friction element is normally spaced a slight distance from the truck bolster.

The inuirof'ed bearing, as shown, comprises, broadly, a housing or retaining niem-i ber ik, an anti-friction element proper B, and a pair of combined centering and supporting springs C-C.

The housing or retaining member A will ordinarily be made. in the form of a malle; able casting and has an upper wall 110, spaced delicnding side walls 111 111, and curved endy walls l2-l2- Said member A is provided :it the corners thereof with suitably perforated lugs 13-13 by which it is riveted or otherwise rigidly secured to the bot y bolster.

The anti-friction element B, as shown, is of generally triangular formation and has three arcuate surfaces 14, 14A and 14B struck on relatively long radii and three arcuate surfaces 15, 15A and 15B struck on relatively short radii. The surfaces 14 and 15; 14A and 15A; and 14B and 15B are made concentric s0 as to obtain a proper rolling action. Said element B is preferably made in the form of a casting suitably hardened and, at the top thereof, it is provided with extensions or lugs D-D. These lugs D are provided on their under surfaces with rounded edges indicated at 1G and said lugs are projected upwardly beyond the corresponding arcuate bearing surface 14, as indicated at 17 in Fig. 1. The extensions 17 are'received in tapered openings or guideways 18 formed in the retaining member A so that the lugs D are utilized as centering and guiding means for the anti-friction element B. The inner faces of the side walls 111 of the retaining member A are provided with ribs 19-19 arranged to act as a continuation of the guiding or centering recesses 18.

To support the anti-friction element B, the springs C are utilized, one on each end of the element. Each spring C is preferably formed from spring wire and is of a general o val form having at the top thereof a depression 20 to form a suitable yieldable bearing for the corresponding lug D. At the bottom, each spring C has the ends thereof indicated at 21 turned downwardly so as to fit in a recess 22 provided in the retaining' member A. The recesses 22 are really notches in inturned flanges 23-23 formed along the lower edges of the side walls 111 of the retaining member A. The springs C are inserted through suitable perforations 24 in the end walls 12 of the retaining member A.

The normal position of the parts is as shown by the full lines in F ig. 1 in which condition it is evident that the anti-friction clement B is supported clear of the truck bolster by the springs C. When the bearing is brought into action and the element B rolled to either side of normal, as for instanre to the position indicated by the dotted lines B in Fig. l., it is evident that the lu gs D will be swung downwardly and thereby compress the springs C. The limit of movement of the anti-friction element B is obtained when the element B engages against the corresponding end wall 12, the latter being preferably curved to conform to the curvature of the surfaces 14 and 14A. When the pressure on the bearing is removed, the antrfriction element B will return to normal under the influence of the springs C and also under the influence of gravity since the anti-friction element B will have a tendency to swing about the lugs D as fulcrums on the springs C.

The device is simple, compact, relatively inexpensive to manufacture and apply. The

device herein shown and described is the preferred construction, the same-is merely illustrative and l contemplate such changes and modifications as come within the scope of the claims appended hereto.

I claim: i

1.7111 an anti-friction bearing, the combination with a housing adapted to be attached to the bolster, of an anti-friction element mounted within said housing and adapted for movement back and forth therein, said element having lugs extended from itsV ends, means on the housing directly engaging and cooperating with said lugs to center said element, and springs interposed between said housing and' said lugs and directly engaging and coperati'ng with the latter to return said element to central normal position after actuation thereof, said springsY supporting theV anti-friction element.

2. 1n an anti-friction bearing, the combination with a housing adapted to be secured to the under side of a body bolster' and open at its bottom, of an anti-friction element mountedV within said housing and depending partly below the latter, said element being adapted for movement back and forth within the housing and having lugs extended from its ends, means on the housing coperable with said lugs to center said element, and springs interposed between said housing and said lugs and coperable with the latter to return said element to central normal position after actuation thereof, said springs supporting the antifriction element.v

3. InV an anti-friction bearing, the combination with a housing adapted to be attached to a bolster, of an anti-friction element mounted within said housing and adapted for movement back and forth therein, said element being of substantially triangular form having three sets of concentric bearing surfaces, each set consisting of' a bearing surface struck on a relatively long radius and a bearing surface struck on a relatively sort radius, cooperating means on said element and the housing arranged to center said element, and spring means interposed between said element and the housingarranged to return said element to central normal position after actuation thereof, said spring means pivotally supporting said element.

et. In an anti-friction bearing, the combination with a hollow housing` adapted to be attached to the under side of a body bolster and open at its bottom, of an antifriction element mounted within lsaid housing and depending partly ther belown said element being of substantially triangular' formation and having three sets of concentric bearing surfaces, each set consisting of z bearing surface -struck on a relatively long` dius and a bearing surface struck on a relatively short radius, said element having lugs extended from the ends thereof at the top,y means on said housing coperable with said lugs to maintain said element in central position, and spring means coperable with said lugs to return said element to normal. position after actuation thereof.

5.7In an anti-friction bearing, the combination with a hollow housing adapted to be secured to the under side of a body bolster, said housing being open at the bottoni and having` an upper wall adapted to act as a hearing surfacev` of an anti-friction element mounted within said housing and depending partly tl'ierebelow, said element having lugs extending from the ents thereof at the top, the housing having recesses within which said lugs are disposedto thereby properly center the anti-friction element, and loop-shaped springs at each end of said element supported within the housing, said springs engaging the under sides of said lugs and pivotally supporting the latter.

ln witness that l claim the foregoing l have hereunto subscribed my name this 27th day of Aug., 1919.

Jol-ni r. oieoNNon. 

